InCORS

Price and plans

Not published by the operator: free trial, discounts / exemptions, what's included.

Coverage

Where it works

State-run network for Indiana.

Stations

Not published; the public sourcetableSourcetableThe list of every mount point a caster offers. Your app shows it when you connect without picking one.Full definition listed 136 mountpoints on Oct 17, 2026 (network products plus any single-station streams)

Needs cell signal?

Yes: NTRIPNTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.Full definition needs internet at the roverRoverThe receiver that moves around the job, like a survey pole or a drone. It uses the base's corrections to find its exact spot.Full definition (cell data or a phone hotspot). General rule, not an operator statement.

Not published by the operator: official coverage map.

Connection settings

NTRIP caster

Confirmed live: a public sourcetable request to 108.59.49.226:9000, 108.59.49.226:7071 answered on Oct 17, 2026 with 136 mountpoints.

Mount types

MAX, i-MAX (network), single station MSM4

Correction formats

RTCMRTCMThe common format RTK corrections are written in, so different brands can understand each other.Full definition 2.3, RTCM 3.1 (MAX/i-MAX), RTCM 3 MSM4

Must send GGAGGAA short message your rover sends with its rough location. VRS and nearest-station streams need it to know where you are.Full definition position?

Yes for VRS / network / nearest-base mountpoints (your rover must send its position as an NMEANMEAA common text format GPS receivers use to report position and status. GGA is one NMEA message.Full definition GGA message). General rule based on the mount types.

Not published by the operator: satellites (constellationsConstellationOne family of navigation satellites, like GPS, GLONASS, Galileo or BeiDou. More constellations means more satellites to use.Full definition), datumDatumThe starting point and ruler that coordinates are measured from. The same spot has different numbers in different datums.Full definition / epochEpochOne moment of GPS measurement. A receiver logging at 1 Hz records one epoch every second.Full definition / geoidGeoidA lumpy, imaginary "sea level" surface around the whole Earth. Elevations are measured from it.Full definition, accuracy, receivers that work.

Sign-up steps

1. Download and sign the InCORS RTKRTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.Full definition user agreement
2. Return it to INDOT
3. INDOT sends the IP, port, username and password

Sign-up page

Go to sign-up →

Who can sign up

Anyone who signs and returns the INDOT RTK user agreement

Not published by the operator: how long approval takes.

Fine print

Support

Network admin 317.522.9771

Last checked

Oct 17, 2026

Not published by the operator: terms / user agreement, system status page.